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arXiv math-ph/0305044math-phhep-thmath.CAmath.MP
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谱原点本征值相关的普适性

Universality for eigenvalue correlations at the origin of the spectrum

A. B. J. Kuijlaars, M. Vanlessen

摘要:

我们建立了酉随机矩阵系综(1/Z_n)中局部特征值相关性的普适性|\det M| ^{2α} e^{-n \tr V(M)} dM靠近光谱原点。如果V是偶数,并且如果与|x| ^{2α} e^{-nV(x)}相关联的正交多项式的递归系数具有规则的极限行为,则从Akemann等人的工作可知,Kanzieper和Freilikher认为局部特征值相关性具有用贝塞尔函数描述的普遍行为。我们将其扩展到更广泛的一类限制势V。我们的方法是基于Deift和周的最速下降法的黎曼-希尔伯特问题的渐近分析。Deift等人使用这种方法来建立大部分光谱的普适性。本工作的一个主要部分是致力于分析的局部Riemann-Hilbert问题附近的起源。

英文摘要:

We establish universality of local eigenvalue correlations in unitary random matrix ensembles (1/Z_n) |\det M|^{2α} e^{-n\tr V(M)} dM near the origin of the spectrum. If V is even, and if the recurrence coefficients of the orthogonal polynomials associated with |x|^{2α} e^{-nV(x)} have a regular limiting behavior, then it is known from work of Akemann et al., and Kanzieper and Freilikher that the local eigenvalue correlations have universal behavior described in terms of Bessel functions. We extend this to a much wider class of confining potentials V. Our approach is based on the steepest descent method of Deift and Zhou for the asymptotic analysis of Riemann-Hilbert problems. This method was used by Deift et al. to establish universality in the bulk of the spectrum. A main part of the present work is devoted to the analysis of a local Riemann-Hilbert problem near the origin.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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